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What really happens when a space shuttle returns with no astronauts
When a spacecraft comes home without people on board, it is not a cinematic failure but a carefully choreographed engineering ...
NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts ...
Challenger exploded 73 seconds after liftoff while carrying seven people, including "Teacher in Space" participant Christa McAuliffe. Nobody survived the launch on Jan. 28, 1986 from NASA's Kennedy ...
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